(19)
(11) EP 0 803 534 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.03.1998 Bulletin 1998/11

(43) Date of publication A2:
29.10.1997 Bulletin 1997/44

(21) Application number: 97109976.7

(22) Date of filing: 26.11.1992
(51) International Patent Classification (IPC)6: C08K 5/09, C08K 5/00
(84) Designated Contracting States:
BE DE ES FR GB IT

(30) Priority: 26.11.1991 JP 310361/91
11.12.1991 JP 327652/91
25.06.1992 JP 167702/92
25.06.1992 JP 167703/92

(62) Application number of the earlier application in accordance with Art. 76 EPC:
92924013.3 / 0598131

(71) Applicant: KANSAI PAINT CO., LTD.
Amagasaki-shi, Hyogo-ken 661 (JP)

(72) Inventor:
  • Isozaki, Osamu
    Yokohama-shi, Kanagawa 244 (JP)

(74) Representative: KUHNEN, WACKER & PARTNER 
Alois-Steinecker-Strasse 22
85354 Freising
85354 Freising (DE)

 
Remarks:
This application was filed on 18 - 06 - 1997 as a divisional application to the application mentioned under INID code 62.
 


(54) Cross-linking agent


(57) The invention provides a crosslinking agent comprising a compound having at least two noncyclic acid anhydride groups and represented by the following formula

wherein R is a monovalent hydrocarbon group having 2 to 50 carbon atoms, R' is a bivalent hydrocarbon group having 2 to 50 carbon atoms, the hydrocarbon groups R and R' containing or not containing an ether linkage, urethane linkage or ester linkage, and n is an integer of 1 to 500.





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